Rear brake pad and rotor replacement on a 1999 Saab 9-5. The car has the early style fixed rear calipers, so this guide will also apply to NG900 and 9-3's.

Tools:

  • 18 mm socket: caliper bolts;
  • 17 mm socket: wheel bolts;
  • 10 mm wrench: handbrake cable bracket (9-5 only);
  • Torx T30 socket: rotor index screws;
  • thin punch and a hammer;
  • long socket extensions;
  • long flat screwdriver;
  • impact driver;
  • drill and screw extractor (optional);
  • wire brush;
  • torque wrench;
  • car jacks and stands.

 

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09.07.2005: Wheel off
Raise the rear end of the car, secure it on jack stands and take the wheels off (17 mm socket). My cars always manage to turn up dirty just the day before I plan to do some work on them. They look much cleaner normally ;).

 

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09.07.2005: Bracket
On the 9-5, undo the 10 mm bolt holding the handbrake/brake line bracket to the suspension arm. On the NG900/9-3 the brake line is attached with plastic clips.

 

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09.07.2005: Punching out
Hammer out the pins on the back of the caliper. A thin punch works well. It's amusing that all you need to change the rear pads on a Saab is a hammer ;).

 

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09.07.2005: Pins and pads
Remove the pins, the spring and the brake pads.

 

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09.07.2005: Drill
With 160K on the car and the rotors being original, the chances that the index screw will come out without a fight are very slim. The screw on the right side had to be drilled out. Stock up on spare screws before you start this job.

 

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09.07.2005: Screw extractor
The screw extractor quickly finishes the job. After the exhaust manifold job this felt like a piece of cake.

 

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09.07.2005: Impact driver
The screw on the left side came out with a help of an impact driver, no drilling was required. The original screws take a Torx T30 socket.

 

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09.07.2005: Caliper bolts
Undo the caliper bolts. The clearance on the 9-5 is quite tight, there's barely enough room for a short 18 mm socket and a flat ratchet handle.

 

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09.07.2005: Rotor
Support the caliper so it won't be hanging on the brake line. With the caliper out of the way, the rotor comes off (if you're lucky ;).

 

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09.07.2005: Handbrake
Take your time to study the handbrake adjuster. On the right side of the car, the star-shaped wheel has to be turned downward to tighten the handbrake. Upward on the left side.

 

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09.07.2005: Old and new
My shiny new Brembo rotors from. They came with two index screws included.

 

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09.07.2005: Old and new
The minimum thickness for the rotors is 8 mm. The new ones measure at 10 mm. The old ones were only worn down to 9 mm, but they had deep grooves and a lot of rust.

 

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09.07.2005: New rotor
Install the rotor, apply some anti-seize to the mating surfaces and the index screw. Do not tighten the screw too much, it's just there to position the rotor. Tighten the caliper bolts to 59 ft-lbs, put some loctite on the thread. Attach the brake line bracket to the suspension arm.

 

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09.07.2005: Handbrake adjustment
Now is the good time to adjust the handbrake. Release the brake lever and use a flat screwdriver to spin the adjuster wheel until the shoes grab. Then unwind the adjuster so the rotor just starts spinning freely. Repeat on the other side. If done correcly, the lever should be tight at 3-4 clicks now.

 

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09.07.2005: New pads
Pull the new pads out of the box. Apply the lubricant to the back side and insert them into the caliper. Inspect the pins and the springs, use a new set if the old ones became rusty and fragile.

 

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09.07.2005: Installed
Hammer the pins back in, the spring goes in after the first pin is inserted. Install the wheels (81 ft-lbs) and lower the car to the ground.

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